Introducing reCAPTCHA v3 Beta

We are excited to introduce the beta version for reCAPTCHA v3. reCAPTCHA v3
returns a score for each request without user friction. The score is
based on interactions with your site and enables you to take fine-grained
action. Learn more.

The reCAPTCHA advantage

Advanced Security

State of the art spam & abuse protection for your website

Ease of Use

Low friction, effortless interaction for your users

Creation of Value

Apply the human bandwidth to benefit people everywhere

What is reCAPTCHA?

reCAPTCHA is a free service that protects your website from spam and abuse. reCAPTCHA uses an advanced risk analysis engine and adaptive CAPTCHAs to keep automated software from engaging in abusive activities on your site. It does this while letting your valid users pass through with ease.

Advanced Security

reCAPTCHA protects and defends

reCAPTCHA is built for security. Armed with state of the art technology, it always stays at the forefront of spam and abuse fighting trends. reCAPTCHA is on guard for you, so you can rest easy.

Not just distorted text

reCAPTCHA doesn’t depend solely on text distortions to separate humans from machines. Rather it uses advanced risk analysis techniques, considering the user’s entire engagement with the CAPTCHA, and evaluates a broad range of cues that distinguish humans from bots.

Bots Beware

reCAPTCHA is the most widely used CAPTCHA provider in the world. Our broad installed publisher base provides an unparalleled view into abusive activity on the internet, so the bad guys cannot hide. reCAPTCHA knows when to be tough to keep the bots at bay.

Ease of use

Easy for People.Hard for Bots

Purposefully designed. And actively aware. reCAPTCHA knows when to be easy on people and hard on bots. Our easy CAPTCHAs are a breeze for legitimate users.

Accessibility Option - Safe & Sound

For the visually impaired, reCAPTCHA provides an audio CAPTCHA option. Your legitimate users will find our regular audio CAPTCHAs easy to solve. Bots on the other hand will get a much harder audio CAPTCHA designed to block them.

Creation of Value

Help everyone, everywhere - One CAPTCHA at a time.

Millions of CAPTCHAs are solved by people every day. reCAPTCHA makes positive use of this human effort by channeling the time spent solving CAPTCHAs into digitizing text, annotating images, and building machine learning datasets. This in turn helps preserve books, improve maps, and solve hard AI problems.

Stop a bot.Improve a map.

reCAPTCHA improves our knowledge of the physical world by creating CAPTCHAs out of text visible on Street View imagery. As people verify the text in these CAPTCHAs, this information is used to make Google Maps more precise and complete. So if you're a Google Maps user, your experience (and everyone else's) will be even better.

Stop a bot.Build a bot.

reCAPTCHA helps solve hard problems in Artificial Intelligence. High quality human labelled images are compiled into datasets that can be used to train Machine Learning systems. Research communities benefit from such efforts that help build the next generation of groundbreaking Artificial Intelligence solutions.

Stop a bot.Save a book.

reCAPTCHA digitizes books by turning words that cannot be read by computers into CAPTCHAs for people to solve. Word by word, a book is digitized and preserved online for people to find and read.